Facilitators and Barriers to Implementing HIV Testing and Pre-Exposure Prophylaxis in Substance Use Treatment Programs: Perspectives of Non-medical Staff.

Background: People with substance use disorder (SUD) are at increased risk of HIV infection. HIV testing and pre-exposure prophylaxis (PrEP) are evidence-based practices to prevent HIV infection, yet these approaches are not regularly provided in SUD treatment programs. To address this evidence-to-practice gap, this study aimed to identify facilitators and barriers to implementing PrEP services in SUD treatment programs from the perspective of non-medical staff and administrators.

Methods: Semi-structured interviews were conducted from February to June 2022 with non-medical staff (N = 10) and administrators (N = 11) from 3 academic and 8 community-based SUD treatment programs in Philadelphia. Interview guides were developed using the Consolidated Framework for Implementation Research (CFIR). Qualitative descriptive techniques were used to examine interview data and identify key facilitators and barriers, which were grouped within CFIR domains and constructs.

Results: Of the 11 SUD treatment programs, 5 provided PrEP services. Most interviewees at programs without PrEP services reported high levels of receptivity to implementing PrEP and identified leadership engagement as a key determinant, but several lacked comfort with PrEP counseling. Inner setting facilitators included compatibility with workflows (eg, intake assessments), alignment with cultures of holistic care, and programs' longstanding community trust. Inner setting barriers included limited time to discuss PrEP, insufficient resources and staff (eg, phlebotomy), perception of clients' HIV risk, and lower prioritization of HIV prevention versus other services. Intervention facilitators included robust evidence and addressing costs through grants and drug pricing programs, and barriers included the time needed to initiate PrEP, loss to follow-up, and HIV stigma.

Conclusions: Successful implementation of HIV testing and PrEP in SUD treatment programs requires addressing multi-level barriers. Including perspectives of non-medical staff and administrators is important for implementation. Potential strategies include supporting organizational networks, leveraging peer specialists' expertise, and packaging PrEP to better meet client priorities and needs.